Have A 1997 Oldsmobile Aurora with a 4

Have A 1997 oldsmobile Aurora with a 4.0 v8 Replaced the starter which is located under the intake manifold. But im not gerring power to the purple soleniod wire. Is there a starter relay that sends the power if so how do I test it and does the reley supply grond to turn the power on or does it supply power I know sometimes it could be either way. I unplugged the purple wire at the two spade plug and tested both spades for power but nothing. Possibly a bad ground? Please help as soon as you can very cold here trin to put it back together. Thanks